JTEKT ENGINEERING JOURNAL

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No.1003E 2007 Development of Electric Oil Pump for Automotive Drivetrain

Category TECHNICAL REPORT
Author Y. ASAI
Toubu Technical Center (Bearing), Bearing & Driveline Operations Headquarters
T. SAKATA　Y. YUKITAKE
Unitized Product Development Department, Bearing & Driveline Operations Headquarters
S. OKUMURA
Future Technology for Next Product & Process Innovation R&D Department, Research & Development Center
D. ITOU
KOYO ELECTRONICS INDUSTRIES CO., LTD.
Abstract JTEKT has developed an electric oil pump for drivetrains. This is an internal gear type pump with a brushless DC motor and no sensor. Size and cost reduction has been achieved by unitizing the pump, DC motor and controller.
Keyword electric oil pump, drivetrain, DC motor, brushless motor, sensorless, idling stop
Reference

T. SAKATA, Y. YOKOI : Development of an Electric Pump Unit for Drive Trains, Koyo Engineering Journal, No.159E (2001) 67.
M. HATTORI, K. YOSHINAMI: Development of Drive Method for Brushless Motor without Hall-sensors, Koyo Engineering Journal, No.164E (2004) 53.
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